True because they are selecting and breeding for traits that will be best for survival
CSF, or cerebrospinal fluid, nourishes and protects the brain and spinal cord.
Answer:
The first law of thermodynamics states that the total energy of universe is constant.
Explanation:
The first law of thermodynamics is related with the theory of energy conservation.The first law of thermodynamics states that energy cannot be created nor destroyed.
Energy can only be transformed from to one state to another state.For example light energy is converted to heat energy.
